//Save states and rom loading
private void HandleIO()
{
if (queueLoadState)
{
queueLoadState = false;
using (FileStream FS = new FileStream(saveStatePath, FileMode.Open))
{
ReadStateFromStream(FS);
}
RewindManager.Reset();
}
else if (queueSaveState)
{
queueSaveState = false;
using (FileStream FS = new FileStream(saveStatePath, FileMode.OpenOrCreate))
{
WriteStateToStream(FS);
}
}
else if (queueLoad)
{
queueLoad = false;
GamePak = new GamePak(romPath);
Mapper = Mapper.Create(this);
CPU.Reset();
PPU.Reset();
APU.Reset();
RewindManager.Reset();
State = EmulatorState.Running;
}
}
public Emulator()
{
//Set emulation settings
Turbo = false;
Speed = 1;
Pause = false;
DisableAPU = false;
TrackHistory = false;
State = EmulatorState.Halted;
queueLoad = false;
romPath = "";
queueSaveState = false;
queueLoadState = false;
saveStatePath = "";
//Init emulator
CPU = new CPU(this);
PPU = new PPU(this);
APU = new APU(this);
Controllers = new Controller[] { new Controller(), new Controller() };
NetPlayServer = new NetPlayServer(this);
GameGenie = new GameGenie();
RewindManager = new RewindManager(this);
//Init emulation thread
EmuThread = new Thread(EmulationLoop);
EmuThread.IsBackground = true;
EmuThread.Start();
}
private void HandleFrame()
{
if (!Pause && Running)
{
Stopwatch SW = Stopwatch.StartNew();
if (State == EmulatorState.Rewinding)
{
var frame = RewindManager.PopFrame();
PPU.FrameBuffer = frame.frame;
if (frame.startReached)
{
Array.ForEach(Controllers, x => x.BlockInput = false);
State = EmulatorState.Running;
}
}
else if (State == EmulatorState.CatchingUp)
{
//Catchup to current frame num
int numFrames = RewindManager.FrameOffset;
for (int n = 0; n < numFrames; n++)
{
DoFrame();
var frame = RewindManager.GetFrameRelative(n);
for (int i = 0; i < 2; i++)
{
Controllers[0].LoadInputByte(frame.input[0]);
Controllers[1].LoadInputByte(frame.input[1]);
}
}
Array.ForEach(Controllers, x => x.BlockInput = false);
State = EmulatorState.Running;
}
else
{
DoFrame();
if (TrackHistory)
{
RewindManager.PushFrame(new byte[] { Controllers[0].GetInputByte(), Controllers[1].GetInputByte() }, (byte[])PPU.FrameBuffer.Clone());
}
}
SW.Stop();
if (!Turbo)
{
Thread.Sleep(Math.Max((int)(((1000.0 / 60) - SW.ElapsedMilliseconds) / Speed), 0));
}
}
}